How to replace the KTM LC4 microfilter 58038044000

For riders of the KTM LC4 Super Competition and SXC models, it has unfortunately been a nagging issue for years: the original KTM microfilter (KTM part number 58038044000) is no longer available, and even major oil filter manufacturers such as Hiflo do not have a replacement in their range. We will show you today what your options are.

Unfortunately, the supply problem with the KTM microfilter, affectionately referred to by fans as the "toilet roll", has been going on for several years. The tip of the iceberg can be seen where some Ebay sellers are trying to make a profit from the plight of LC4 riders who are still riding. The microfilters, which once cost only a few euros, are now being offered for more than 100 euros. So that you don't have to rely on them, we have listed the best-known alternatives and our favourite for you.

Replica oil filter

Happily, there is now the possibility of purchasing replica oil filters from small series production in the exact dimensions. The advantage is obvious - they fit exactly and without modification into the original oil filter housing. The paper filter material differs from the original winding of the microfilter, but also offers a large filter surface and maximum filtration power. The replica microfilter is our clear recommendation for the continued operation of the small oil circuit. The only disadvantage: compared to large-series oil filters, they are slightly more expensive (2-3€).

Our recommendation

Buy a high-quality aftermarket filter or complete oil filter kits and oil change sets

Oil filter kit KTM 400 620 LC4 SC SXC Microfilter

Oelfilter kit for KTM 400 and 620 LC4 models with small oil circuit (e.g. Super Competition and SXC). The kit consists of Hiflo oil filter HF155 NT oil filter replacement for micro filter Athena paper gasket oil filter cover (depending on version) 3x O-ring 55,00 x 2,00 NBR70 for micro filter cover and some versions of the oil filter cover 7x copper sealing ring 8x12x1 (for oil lines) 3x copper sealing ring 10x14x1 (for oil lines on the oil filter cover) 1x copper sealing ring 8x12x1,5 (for connection at the clutch cover) 1x copper sealing ring 12x18x1,5 (small oil drain plug) 1x copper sealing ring 22x27x1,5 (big oil drain plug) The set includes all Oil filter gaskets and copper sealing rings on the oil lines, which should be routinely replaced when changing the oil. .

€19.95*

KTM LC4 Microfilter oil filter replacement 58038044000

Exact replacement for the KTM 400 540 620 660 LC4 microfilter element on models with small oil circuit. The oil filter is built to fit the exact dimensions of the microfilter housing, so no modifications are required for installation. The oil filter comes with modern metal housing and high quality paper filter element with maximum filter area.

€8.49*

Oil change kit KTM 400 620 LC4 SC SXC Microfilter Motorex Power Synt 10W/50

Complete oil change kit for KTM 400 and 620 LC4 models with a small oil circuit (e.g. Super Competition and SXC). The kit contains the necessary gaskets and a sufficient amount of oil. Motorex Power Synt 4T 10W/50 is a fully synthetic high performance oil, which is specially designed for the engine load in sporty motorbikes in road use. It provides optimum temperature and shear stability and maximum performance for your LC4. The set consists of 2x 1l Motorex Power Synt 4T 10W/50 full synthetic Hiflo oil filter HF155 NT oil filter replacement for micro filter Athena paper gasket oil filter cover (depending on version) 3x O-ring 55,00 x 2,00 NBR70 for micro filter cover and some versions of the oil filter cover 7x copper sealing ring 8x12x1 (for oil lines) 3x copper sealing ring 10x14x1 (for oil lines at the oil filter cover) 1x copper sealing ring 8x12x1,5 (for connection at the clutch cover) 1x copper sealing ring 12x18x1,5 (small oil drain plug) 1x copper sealing ring 22x27x1,5 (large oil drain plug) The set includes a sufficient amount of oil, oil filter, oil filter seals and sealing rings, which should be routinely replaced when changing the oil. Environmental information and disposal:After use, engine oils should be disposed of at a waste oil collection point. For proper disposal, you can send us your used oil up to the quantity you purchased from us (according to the invoice) for free and proper disposal or hand it in personally (arrange an appointment in advance). The oil must be returned in its original or equivalent packaging without any foreign substances such as brake fluids, coolants or solvents. As Altoel is a dangerous good, there are special shipping regulations! The costs for this are to be borne by the buyer. Improper disposal of oil endangers the environment!

€64.95*

Selfmade oil filters

It is possible to replace the KTM LC4 microfilter with a suitable mass-produced oil filter by, for example, gluing on felt rings to fit the housing. It is essential to use a silicone adhesive to ensure that it is heat-resistant and does not come off at higher oil temperatures and possibly mix with the oil.

Washable permanent filters

An American supplier offered a microfilter replacement with a stainless steel frame, which was a washable permanent filter. We cannot say anything about the filter efficiency (especially after a few washes), but the comparatively high price and the cumbersome handling are a deterrent.

No oil filter

Driving without an oil filter is unfortunately not a good idea, we must advise against it in any case. The oil filter represents an important resistance in the oil circuit, without which pressure conditions in the lubrication system can change significantly. Without a filter, there is a risk of considerable engine damage in the worst case.

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Succulent in a white pot in front of light blue background

Both the original microfilter, affectionately called "Klorolle" by fans, and the complete KTM oil filter sets are unfortunately no longer available.